Table 4. The alpha diversity for each group of covariates.

The mean Shannon diversity and standard deviation for each group of covariates are shown (N = 58).

Factors		Mean Shannon diversity ($\overline{x}$)	Standard deviation (σ)
Geographical location	Pune	1.18	0.69
	Ahmednagar	1.48	0.88
	Nashik	1.27	0.73
Diet	Vegetarian	1.24	0.65
	Mixed	1.27	0.82
Age group	Adult (16-40 years)	1.45	0.66
	Middle age (41–59 years)	0.89	0.49
	Elderly (60–91 years)	1.31	0.90